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TIL Sharks have been on earth for longer than trees have.

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yQmxV TIL about Drayton Daugherty, a doctor who cured a dying man by pretending to undo a voodoo hex in a last ditch effort after modern medicine didn't work. The man believed he was cured and lived for ten more years.
ABdl TIL John Michell - called both the father of seismology and the father of magnetometry. “One of the greatest unsung black scientists of all time”, he was the first person known to propose the existence of black holes, earthquakes travel in waves. No one knows what he looked like.
PxnJ TIL that scientists can read dreams using brain scans.
wy6 TIL that on August 15, 1943, American troops invaded an empty island, losing more than 200 soldiers.
9Yyb7 TIL there is a story in the bible about two bears attacking some kids for making fun of a bald guy